- pdf CEN-KEYMARK-Flyer (1.25 MB)
- pdf KEYMARK Scheme Rules for Thermostatic Radiator Valves English (553 KB)
- pdf Annex 1 - Basic content of an application form for granting the right to use the KEYMARK (11 KB)
- pdf Annex 2 - Graphic representation of the KEYMARK (103 KB)
- pdf CEN-CENELEC Internal Regulations Part 4 (224 KB)